Abstract

We demonstrate control of spatial dimensionality of disordered configurations of giant electronic domains in systematically size-changed VO2wires on TiO2 (001) substrates. One-dimensional alignment of the domains appears in wires narrower than 15 μm width, while two-dimensional configurations were observed for larger ones. The rearrangement of domains from two to one dimension causes modification of electronic properties.

Received 01 November 2012Accepted 11 December 2012Published online 28 December 2012

Acknowledgments:

We gratefully acknowledge helpful and enlightening discussions with M. Okada and S. Matsui. This work was supported by a Grant-in-Aid for JSPS Fellows (No. A2339500), Young Scientist S (No. 21676001), and Young Scientist B (No. 23760014), and partially supported by the Nanotechnology Network Project, the Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT).